This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility:

fact-checked

proofread

Vibration to power: Bidirectional piezoelectric systems for future aerospace structures

Vibration to power: bidirectional piezoelectric systems for future aerospace structures
Experimental setup: (A) Schematic diagram and close-up photos of the piezoelectric cantilever beam and shunt circuits. (B) Photo of the experimental platform. Credit: International Journal of Mechanical System Dynamics (2024). DOI: 10.1002/msd2.12101

Mechanical structures often suffer from vibrations that can compromise safety, comfort, and operational longevity. Traditional control methods, while effective, demand substantial energy and complex systems. The quest for efficient and sustainable alternatives has led to the exploration of piezoelectric materials. However, the limitations of current damping techniques necessitate an in-depth examination of novel approaches to achieve superior vibration suppression.

A from Nanjing University of Aeronautics and Astronautics, along with international partners, has yielded a study published in the International Journal of Mechanical System Dynamics on March 11, 2024. The research introduces a pioneering bidirectional energy-controlled piezoelectric shunt damping technology that promises to transform the field of vibration control.

The study's centerpiece is a flyback transformer-based switching circuit that dynamically interacts with piezoelectric elements, either extracting or injecting energy. This dual functionality allows for precise vibration attenuation, with experimental results corroborating theoretical models.

The system demonstrated an adjustable attenuation range from -5 to -25 dB and a power consumption spectrum from -13 to 25 mW, underscoring its potential for self-sustaining operation and its suitability for applications with limited power availability.

Dr. Yipeng Wu, a lead researcher and Associate Professor at Nanjing University of Aeronautics and Astronautics, said, "This technology is a game-changer, offering superior vibration attenuation without the dependency on . It enhances system performance, introduces new possibilities for sustainability, and points the way to autonomous control solutions."

The potential applications of this technology are expansive, with the aerospace, automotive, and industrial sectors set to benefit from lighter, more efficient, and cost-effective systems.

The capacity to harvest energy from vibrations could also be pivotal for powering remote sensors and electronics, thereby bolstering the advancement of smart structures and IoT. This innovation could mark a pivotal shift towards self-reliant and intelligent mechanical systems.

More information: Yipeng Wu et al, Bidirectional energy‐controlled piezoelectric shunt damping technology and its vibration attenuation performance, International Journal of Mechanical System Dynamics (2024). DOI: 10.1002/msd2.12101

Provided by TranSpread
Citation: Vibration to power: Bidirectional piezoelectric systems for future aerospace structures (2024, June 11) retrieved 23 June 2024 from https://techxplore.com/news/2024-06-vibration-power-bidirectional-piezoelectric-future.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.

Explore further

Hybrid energy harvesters that harness heat and vibration simultaneously

11 shares

Feedback to editors